常见例句双语例句An ancient man-made near ground surface rock cavern group was found in Longyou County, Zhejiang Province. The 24 large caverns were excavated 2000 years ago.浙江省西部龙游县的龙游大型古地下洞室群由24 个洞室组成，该洞室群开挖于2000 年前。 返回 large cavern group